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Finding the Fourth Proportional to 978,474.24, 1,350,304.20 and 548,745.12

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Solution

The fourth proportional to 978,474.24, 1,350,304.20 and 548,745.12 is: 757,273.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,474.24 : 1,350,304.20 = 548,745.12 : x
  2. Step 2: Convert to fraction form
    978,474.24/1,350,304.20 = 548,745.12/x
  3. Step 3: Cross multiply
    978,474.24x = 1,350,304.20 × 548,745.12
  4. Step 4: Simplify right side
    978,474.24x = 740,972,840,265.50
  5. Step 5: Solve for x
    x = 740,972,840,265.50/978,474.24
  6. Step 6: Final answer
    x = 757,273.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.